Universal 4" Optimal Flow Muffler

4” muffler

Installed the 4” muffler after deleting the truck without the muffler and was a little too loud towing and had a bit of a drone while cruising. The muffler solved everything. Thank you!

Works Great

Does a great job taking the edge off of you think the straight pipe is too loud. Installed easily and gives it a lower powerful growl.

Universal 4 optimal flow muffler

Seems to be a good quality muffler. Truck has a good sound and not super Loud.